Tensor-polarized structure function b(1) in the standard convolution description of the deuteron

doi:10.1103/PhysRevD.95.074036

	Tensor-polarized structure function b(1) in the standard convolution description of the deuteron
	Cosyn, W; Dong YB(董宇兵); Dong, YB; Kumano, S; Sargsian, M
刊名	PHYSICAL REVIEW D
	2017
卷号	95 期号:7 页码:74036
ISSN号	2470-0010
DOI	10.1103/PhysRevD.95.074036
文献子类	Article
英文摘要	Tensor-polarized structure functions of a spin-1 hadron are additional observables, which do not exist for the spin-1/2 nucleon. They could probe novel aspects of the internal hadron structure. Twist-2 tensor-polarized structure functions are b(1) and b(2), and they are related by the Callan-Gross-like relation in the Bjorken scaling limit. In this work, we theoretically calculate b(1) in the standard convolution description for the deuteron. Two different theoretical models, a basic convolution description and a virtual nucleon approximation, are used for calculating b(1), and their results are compared with the HERMES measurement. We found large differences between our theoretical results and the data. Although there is still room to improve by considering higher-twist effects and in the experimental extraction of b(1) from the spin asymmetry A(zz), there is a possibility that the large differences require physics beyond the standard deuteron model for their interpretation. Future b(1) studies could shed light on a new field of hadron physics. In particular, detailed experimental studies of b(1) will start soon at the Thomas Jefferson National Accelerator Facility. In addition, there are possibilities to investigate tensor-polarized parton distribution functions and b(1) at Fermi National Accelerator Laboratory and a future electron-ion collider. Therefore, further theoretical studies are needed for understanding the tensor structure of the spin-1 deuteron, including a new mechanism to explain the large differences between the current data and our theoretical results.
电子版国际标准刊号	2470-0029
WOS关键词	DEEP-INELASTIC-SCATTERING ; GENERALIZED PARTON DISTRIBUTIONS ; SPIN-ONE HADRONS ; ELECTRON-SCATTERING ; FLAVOR ASYMMETRY ; NUCLEON ; MESONS ; QUARKS ; SEA ; QCD
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
WOS记录号	WOS:000400142000005
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284481]
专题	高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Cosyn, W,Dong YB,Dong, YB,et al. Tensor-polarized structure function b(1) in the standard convolution description of the deuteron[J]. PHYSICAL REVIEW D,2017,95(7):74036.
APA	Cosyn, W,董宇兵,Dong, YB,Kumano, S,&Sargsian, M.(2017).Tensor-polarized structure function b(1) in the standard convolution description of the deuteron.PHYSICAL REVIEW D,95(7),74036.
MLA	Cosyn, W,et al."Tensor-polarized structure function b(1) in the standard convolution description of the deuteron".PHYSICAL REVIEW D 95.7(2017):74036.